WorldCat Identities

Fisher, F. A.

Overview
Works: 19 works in 27 publications in 1 language and 57 library holdings
Genres: Handbooks and manuals  Maps  Nautical charts  Trials, litigation, etc 
Roles: Author
Classifications: TL521.3.C6,
Publication Timeline
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Most widely held works by F. A Fisher
Lightning effects on the NASA F-8 digital-fly-by-wire airplane by J. A Plumer( Book )

5 editions published in 1975 in English and held by 27 WorldCat member libraries worldwide

The effects of lightning on a Digital Fly-By-Wire (DFBW)aircraft control system were investigated. The aircraft was a NASA operated F-8 fitted with a modified Apollo guidance computer. Current pulses similar in waveshape to natural lightning, but lower in amplitude, were injected into the aircraft. Measurements were made of the voltages induced on the DFBW circuits, the total current induced on the bundles of wires, the magnetic field intensity inside the aircraft, and the current density on the skin of the aircraft. Voltage measurements were made in both the line-to-ground and line-to-line modes. Voltages measured at the non-destructive test level were then scaled upward to determine how much would be produced by actual lightning. A 200,000 ampere severe lightning flash would produce between 40 and 2000 volts in DFBW circuits. Some system components are expected to be vulnerable to these voltages
Aircraft lightning protection handbook by F. A Fisher( Book )

5 editions published between 1989 and 1990 in English and Undetermined and held by 9 WorldCat member libraries worldwide

This handbook will assist aircraft design, manufacturing, and certification organizations in protecting aircraft against the direct and indirect effects of lightning strikes, in compliance with Federal Aviation Regulations. It presents a comprehensive text to provide the essential information for the in-flight lightning protection of all types of fixed/rotary wing and powered lift aircraft of conventional, composite, and mixed construction and their electrical and fuel systems. The handbook contains chapters on the natural phenomenon of lightning, the interaction between the aircraft and the electrically charged atmosphere, the mechanism of the lightning strike, and the interaction with the airframe, wiring, and fuel system. Further chapters cover details of designing for optimum protection; the physics behind the voltages, currents, and electromagnetic fields developed by the strike; and shielding techniques and damage analysis. The handbook ends with discussion of test and analytical techniques for determining the adequacy of a given protection scheme. Keywords: Lightning protection, Fuel vapor ignition, Fuel system safety, Atmospheric electrical hazards, Lightning safety, Lightning simulation, Aircraft certification, Atmospheric electromagnetism, Induced currents & voltages, Electromagnetic shielding
Cloaks, no. 1 by F. A Fisher( )

1 edition published in 2017 in English and held by 6 WorldCat member libraries worldwide

"A TREASURE!" --Three-time Hugo-winner Mary Robinette KowalOld Mr. Heldrick is every bit as dangerous as the kids imagine--not because he's a demented killer but because his house hides a portal to another world, and he's the guardian. When Bess is caught in his basement, she's forced to flee through that doorway, not knowing where it leads.She finds herself in a nightmare world controlled by black-cloaked, knife-wielding horsemen. Within minutes she's on the run. Lost and hungry, she steals and eats fruit from an orchard, which turns out to be poisonous and nearly kills her before she reaches a farm family who take her in. The family members hide her and nurse her back to health, at great risk to themselves. Then, just when she's nearly recovered, the trackers arrive....And that's when her adventure truly begins.Full of intrigue, suspense, and surprise, CLOAKS has been called "a shining example of the genre" by Nebula nominee Sylvia Spruck Wrigley. It will keep you glued until the last page
Fightning effects of the NASA F-8 digital-fly-by-wire airplane by J. A Plumer( Book )

1 edition published in 1975 in English and held by 1 WorldCat member library worldwide

Lightning Effects Relating to Aircraft. Part I. Lightning Effects on and Electromagnetic Shielding Properties of Boron and Graphite Reinforced Composite Materials( Book )

1 edition published in 1972 in English and held by 1 WorldCat member library worldwide

An investigation employing both destructive and nondestructive testing techniques affirms that lightning-produced currents adversely affect boron-and graphite- reinforced epoxy composites for aircraft. A majority of the coatings tested to determine their ability to protect composites in a lighting environment actually aggravated composite deterioration. To mitigate lightning damage, composite coatings must be either highly conductive or highly insulating. Limitations are identified that must be overcome before coatings of either type can be deemed acceptable. Several nondestructive testing evaluation techniques are compared. Acoustic impedance measurement holds the greatest promise, because it requires access to only one side of the material and it correlates well with physical inspections. This technique is potentially effective in locating cracks and delaminations. Resistance measurements are shown to be more meaningful for boron-based than for graphite-based materials. Other nondestructive material techniques, such as ultrasonic C-Scans, X-ray extractions, and sonic-vibrations, are found to be no better for lightning damage appraisal than ordinary visual inspections. (Author, modified-PL)
St. Lawrence River by U.S. Lake Survey( )

1 edition published in 1876 in English and held by 1 WorldCat member library worldwide

Lake Michigan by U.S. Lake Survey( )

1 edition published in 1892 in English and held by 1 WorldCat member library worldwide

Computer Programs for Prediction of Lightning Induced Voltages in Aircraft Electrical Circuits( Book )

1 edition published in 1975 in English and held by 1 WorldCat member library worldwide

The report describes a computerized program to define the induced circuit voltage within an aircraft electrical system due to a lightning strike on the aircraft. One routine of the program (DIFFUSION) calculates the effect of magnetic fields caused by current on the aircraft skin. The other routine (APERTURE) calculates the magnetic field that enters the aircraft because of an opening. The induced voltages are then calculated for any given electrical circuit. The program has defined geometrical configurations for a fuselage, rectangular wing, and empennage sections. A subroutine calculates the current distribution on the skin of the section being analyzed. The program input current and output voltage are in the time domain
Lightning Effects Relating to Aircraft. Part II. Characteristics of Simulated Lightning Flashes and Their Effects on Lightning Arresters and Avionic Equipment( Book )

1 edition published in 1972 in English and held by 1 WorldCat member library worldwide

Measurements were made of the degree to which a lightning arrester could limit the voltage on avionic equipment when an external lightning arrester was struck by a simulated lightning stroke. The tests show that breakdown is not an instantaneous affair, but rather takes many microseconds. Measurements taken near a point which is struck indicate that the air around any protrusions will be in a state of electrical breakdown whenever the electrical field strength at the aircraft surface approaches 100 kV/meter. Electrical discharges tend to limit the field strength to that value, thus defining the electrical environment to which the avionics equipment is subjected. Data is presented showing how the impedance affects the voltages impressed on avionic equipment before the spark gaps in the protecting lightning arrester break down. Measurements were made of the spectral density of radiation from long electrical arcs used to simulate lightning strokes to aircraft. The relative amplitude at different frequencies seems to agree with that observed from natural lightning, falling at a 1/f rate in the vicinity of 1 MHz. (Author-PL)
Saint Lawrence River chart no. 2 : projected from trigonometrical surveys by U.S. Lake Survey( )

1 edition published in 1873 in English and held by 1 WorldCat member library worldwide

Analysis and Calculations of Lightning Interactions with Aircraft Electrical Circuits( Book )

1 edition published in 1978 in English and held by 1 WorldCat member library worldwide

This report documents the results of a study performed to evaluate the indirect effects of lightning strikes - specifically, induced voltages - on the electrical systems of aircraft. Numerical methods for evaluating the fields produced by lightning currents flowing the skin of the aircraft are presented as a first analytical step. Additional numerical methods, for computing the voltages induced in wiring systems by the fields evaluated in the first step, are also presented, as are recommendations on the direction of further study. (Author)
Operator's Manual for Computer Programs for Prediction of Lightning Induced Voltages in Aircraft Electrical Circuits( Book )

1 edition published in 1975 in English and held by 1 WorldCat member library worldwide

The manual describes the use of computer programs defined in the technical report 'Computer Programs for Prediction of Lightning Induced Voltages in Aircraft Electrical Circuits'. It supplements the technical report with information on the use of the computer programs
Lake Michigan by U.S. Lake Survey( )

1 edition published in 1892 in English and held by 1 WorldCat member library worldwide

Down by the river side by F. A Fisher( )

1 edition published in 2000 in English and held by 1 WorldCat member library worldwide

Lightning effects on nasa f-8 digital-fly-by wire airplane by J. A Plumer( Book )

1 edition published in 1975 in English and held by 1 WorldCat member library worldwide

Sabbath Evening Song by F. A Fisher( )

1 edition published in 1866 in English and held by 1 WorldCat member library worldwide

Development of Design Criteria Relating to NEMP Effects on Power Systems. Part I. Conductor Voltages Caused by Pulse Currents Flowing in a Steel Conduit( Book )

1 edition published in 1965 in English and held by 1 WorldCat member library worldwide

The document is the initial report on the first series of tests to determine the magnetically induced voltages on conductors within conduit caused by a pulse current flowing on a steel conduit. These tests investigated the effects of L-shaped conduit with condulets, straight lengths of conduit without condulets, and the increase in induced voltage from openings and loose joints. Parameter effects of bends, conductor position and current amplitude were also determined
Livingston County Soils by University of Illinois (Urbana-Champaign campus)( Book )

1 edition published in 1923 in English and held by 0 WorldCat member libraries worldwide

 
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Audience Level
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Audience level: 0.75 (from 0.68 for Aircraft l ... to 1.00 for Livingston ...)

Languages
English (26)